Free 5-question sample test with instant feedback. See how ready you are.
Question 1
What are the six links in the chain of infection, in order?
Answer: Infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host.
Question 2
Which link in the chain of infection does hand washing MOST directly break?
Answer: Mode of transmission — hand washing removes pathogens before they can be transferred from one person or surface to another.
Question 3
What term describes a person who carries a pathogen but shows no signs or symptoms of illness?
Answer: A carrier. Carriers can still transmit the infectious agent to others without knowing they are infected.
Question 4
Which of the following is an example of a reservoir for pathogens?
Answer: A reservoir is any place where a pathogen lives and multiplies, such as a human body, animal, soil, water, or contaminated equipment.
Question 5
What is the difference between a communicable disease and an infectious disease?
Answer: An infectious disease is caused by a pathogen; a communicable disease is an infectious disease that can be transmitted from person to person or from animal to person.